Physics 9702 · 25 Astronomy and cosmology
25.2 Stellar radii
Apply Wien's displacement law and the Stefan-Boltzmann law to estimate stellar temperatures and radii.
- Questions
- 17
- Years
- 2016–2026
- Multiple choice
- 3
- Written answer
- 14
- Average marks
- 8
Practise astronomy and cosmology questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 4variants 41, 42, 43, 4414
- Paper 1variants 11, 123
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 3 | – | 3 |
| 2025 | 1 | – | 1 | 2 |
| 2023 | – | 1 | 3 | 4 |
| 2022 | 1 | 2 | 2 | 5 |
| 2020 | – | – | 1 | 1 |
| 2019 | – | 1 | – | 1 |
| 2016 | – | 1 | – | 1 |
